qmf::Handle< T > Class Template Reference
A handle is like a pointer: refers to an underlying implementation object.
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#include <qmf/Handle.h>
List of all members.
Detailed Description
template<class T>
class qmf::Handle< T >
A handle is like a pointer: refers to an underlying implementation object.
Copying the handle does not copy the object.
Handles can be null, like a 0 pointer. Use isValid(), isNull() or the conversion to bool to test for a null handle.
Definition at line 38 of file Handle.h.
Member Typedef Documentation
Constructor & Destructor Documentation
Member Function Documentation
- Returns:
- true if handle is null. It is an error to call any function on a null handle.
Definition at line 45 of file Handle.h.
- Returns:
- true if handle is valid, i.e. not null.
Definition at line 42 of file Handle.h.
Conversion to bool supports idiom if (handle) { handle->.
.. }
Definition at line 48 of file Handle.h.
Operator ! supports idiom if (!handle) { do_if_handle_is_null(); }.
Definition at line 51 of file Handle.h.
Member Data Documentation
The documentation for this class was generated from the following file: